2111220011 has 6 divisors (see below), whose sum is σ = 2163970836. Its totient is φ = 2059725200.

The previous prime is 2111219983. The next prime is 2111220029. The reversal of 2111220011 is 1100221112.

It is not a de Polignac number, because 2111220011 - 2¹⁸ = 2110957867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111219974 and 2111220001.

It is not an unprimeable number, because it can be changed into a prime (2111220031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626285 + ... + 629646.

It is an arithmetic number, because the mean of its divisors is an integer number (360661806).

Almost surely, 2^2111220011 is an apocalyptic number.

2111220011 is a deficient number, since it is larger than the sum of its proper divisors (52750825).

2111220011 is an equidigital number, since it uses as much as digits as its factorization.

2111220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256013 (or 1255972 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2111220011 is about 45948.0142225973. The cubic root of 2111220011 is about 1282.8557680119.

Adding to 2111220011 its reverse (1100221112), we get a palindrome (3211441123).

The spelling of 2111220011 in words is "two billion, one hundred eleven million, two hundred twenty thousand, eleven".